diff options
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2008-09-04 00:41:57 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-09-04 00:41:57 +0200 |
| commit | 64151ad5b3a03e236390d6d5160805ee4f4e7c67 (patch) | |
| tree | fc47e478fd05dd84b7f0b3c5a019a3326ac8a880 /drivers/rtc/rtc-m48t59.c | |
| parent | rtc-m48t59: add support for M48T02 and M48T59 chips (diff) | |
| download | linux-64151ad5b3a03e236390d6d5160805ee4f4e7c67.tar.xz linux-64151ad5b3a03e236390d6d5160805ee4f4e7c67.zip | |
rtc-m48t59: allow externally mapped ioaddr
Add support for externally mapped ioaddr. This is required on sparc32
as the ioaddr must be mapped with of_ioremap().
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/rtc/rtc-m48t59.c')
| -rw-r--r-- | drivers/rtc/rtc-m48t59.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index 50f9f10b32f0..867c8a79a6a8 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -411,9 +411,14 @@ static int __devinit m48t59_rtc_probe(struct platform_device *pdev) if (!m48t59) return -ENOMEM; - m48t59->ioaddr = ioremap(res->start, res->end - res->start + 1); - if (!m48t59->ioaddr) - goto out; + m48t59->ioaddr = pdata->ioaddr; + + if (!m48t59->ioaddr) { + /* ioaddr not mapped externally */ + m48t59->ioaddr = ioremap(res->start, res->end - res->start + 1); + if (!m48t59->ioaddr) + goto out; + } /* Try to get irq number. We also can work in * the mode without IRQ. @@ -481,11 +486,12 @@ out: static int __devexit m48t59_rtc_remove(struct platform_device *pdev) { struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; sysfs_remove_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr); if (!IS_ERR(m48t59->rtc)) rtc_device_unregister(m48t59->rtc); - if (m48t59->ioaddr) + if (m48t59->ioaddr && !pdata->ioaddr) iounmap(m48t59->ioaddr); if (m48t59->irq != NO_IRQ) free_irq(m48t59->irq, &pdev->dev); |